Hypotubule syringe



Patented .iuly 29, 1924.

Wre einer JOHN H. WEIJIG, OF GRANITE I'IY ILLINOIS.

Applicatibn file'd Fbtuary 3, 1923.

' Citizen of the United Stabes, 'residing et Granite City, in tl1e eounty 0f ll1adison end Staite of Illihois, l12We inve'rited certain 1iew and useful Improvern'ents in Hypotubule Syringes, of whic'h the following is Specification.

This 'ii1venti0ri relates t0 Certain neW sind liseful impr0vements in hypotuloule syringes, the peculiarities ofwhich Will l5e hereina'fte1 fully describ(ed and claiined.

Thehiain object 0f 'n'ry invenion is Eo provide a tube With e'aled e'nds an'd integral partition forming l1erm(etic'ally sealed 0011- tiguous and independent c hambers conteining respectivtaly parts 0f e hypoclermic syringe adapted t0 c0-operate with the Walls of one c'haniber, and 21 liquid located in another of seid chambere fer use in tll@ syringe,said syringe becoming operative only elfter the fracture of seid chambers et predetermined points.

In the accompe'nying drawing on which like reference numerzil's indieete cerrespo'nding parts, Fig. 1, represents a eentral longitudinal section through a tubrilar device and contained parts exemplifying my invention; Fig. 2, a detached ortion 0f one end tl1at enclosed the cannula neadle of Fig. 1; Fig. 3,- a detached portion of the otlier end with its contained liquid, und a medicament capsule being emptied thereinto; Fig. 4, a

.detached intermediate portion of the tube;

and Fig. 5, a detached mein portion with contained parts constituting therewith an operative hypodermic syringe, showing the piston and plunger drznvn outward und the stored liquid transferred thereinto.

The numeral 4 designates a, tubular Wall with the ende 5 und 6 thereof sealed, and an integral artition formed by constricting the tube welle et 7 till they meet and melt together to form a sealed integral partition intermediate of the ende es shown in Fig. 1. This integral partition may be otherwise formed than by eonstricting seid welle. A pair 01 separate independent contiguous und alined chambers are thus formed, one chamloer 8 being of such size es to iorm a storage chamber for liquid deposited therein before sealing tl1e end 6, thereloy preventing any contamination or lose 01 volume of seid liquid.

Tl1e other chamber 9 on the opp osite side of the constricted portion 7, has concained eria1 N0. 616,732.

therein "a fixed Wall con'sistinlg "0f 0W0 parts,a dise piece 10 an d a conicl pieee 11, are"cemented t'o the inner surface 0f the cliambef 9 at e p1edeterlriined point, und provided with a rec'ess 12 et their mee'ting faces which is traversed by e Cai'1'nula needle 13 Inounted in seid partition by cemnting its end in both ef seid pi'ees,the rece"s 12 receivirig alle cemeht und foiinirl'g eiilargeni ent edliering t0 the nedle sb s 't prevent its 'm0veinent in seid pa1*fiiii0n. The p'ointed end of the needle is tl1us s e'aled if1 tl1e Portion of the chamber 9 thet is* near tl1e end 5 efFig'. l, and the -rieedle f'0rfn e commu'nicating Passage thiougl1 the partitionivhich partitio'n is adapt'edt forih the forwerd end 013 a s'yringe When rracrum of the tube walls is effected et ihe plane 3-3.

011 the Opposite side 0f tli'e partitioh from tl1e needle peint there iS also loca'ed in Seid chainber 9 21 p'iston 14, slidable therein and having a reduced ei1d 15 011 wliich ie cemeinted the end of a tubul'ar pluhger 16 of lesser diaineter tliai1 the chainber 9 and extending toward ehe clsure 7. The plunger nmby be otherwise fornied if desiifed. Tl1is chainber 9 is adepted t0 b'e fractred circurnferentilly et ari'othe'r plane 11 near the end 035 the Plunger 16 So that it may be draWi1 out with the pistoh aft'ei* tl1e fracture 0f chambe'r 9 flie 151i111'e 1- 1. Into this exposed chamber the liquid c0ntained in the separate chamber 8 can be readily transferred after the fracture cf the ehamloer 8 et the predetermined plane 2-2; the piston being then repleced in the open end 01 the chamber 9, und tl1e needle exposed by frecture on ehe plane 3-3 before mentioned, the mein portion of the tube Walls, comprising the clmmber 9 together with its contained arts assembled es in Fig. 5, constitutes an operative hypodermic syringe, the interior part-s 0f which have been preserved in a sterile condition in the hermetic'ally sealed cl1amber before mentioned.

The predetermined points 0f fracture are indicated by the scracched or partly auf; circumferential lines 011 Elle outer surface of the tube et the indicated points 1, 2, end 3.

The chamber 8 may contain an aseptic liquid or a medicated liquid according to the use designed for the syringe. Such use and contents are indicated 011 a label 17 located on the interior ofthe chamber 9 adjacent to tl1e needle where it cannot be altered after sealing of the chamber. VVhen the liquid in tl1e storage chamber is desired to be medicated,such medicament being kept in a solid 01 other separate condition ti1l just beforethe use of the syringe,-a capsule 18 containing such additional o1 other medicament is located in the chamber 9 riearthe needle and is sealed. This capsule is thus protected by the location in the hermetically sealed chamber but can be readily broken after separation 01"? the tube a1; the plane 88 gives access 130 the capsule, Wl1i0h can then be broken and its contents emptied inco the liquid iof the opened chamber 8, as iridieated in Fig. 3. (If desired, the liquid Inay be introduced into the 'compression Chamber by drawing it inward through the needle as tl1e piston is pulled out). VVhen located b tween the fixed'partition and the drawn-out plunger, the piston is pushed inward ti1l the air, and a d1op 01 two of the liquid l1ave been driven out through tl1e cmnula needle, und then the cl1arged syringe is ready to be discharged in the usual manner.

I cla im:

1.A device 0f the char-acter described comprising a tube with hermetic&lly sealed ends, und divided by a artition forming separate hermetically sealed chambers adapted 130 be fractured at predecermined points,one chamber forming a storage chamber for a liquid sealed therein, und another chamber having a cannula needle mounted in a artition located near one end 015 the chamber adjacent 130 a piston und plunger slidably mounted therein and adapted to form a compression chamber 130 receive and eject tl1e liquid deposited therein from said storage chamber.

2. A device of the character described comprising atube hermetically sealed at euch end,part of said tube constituting the Walls of a syringe barrel und having a fixed Wall With cannula needle und piston with plunger located thereinsaid tube having circumferentially cut lines near said fixed Wall und tl1e end of said plunger for effecting fracture ab such points, substanially as described.

8. A device of the character described comprising a hermetically closed tube With integral partition forming a pair 0f hermetically sealed chambers alined with euch other,one chamber having a fixed Wall partitiona cannula needle mounted in and forming a passage through said partition, a piston und plunger also located in said chamber 011 the other side 0f said partition from said needle,and the other chamber forming a hermetically sealed storage charmber f0r a contained liquidsaid tube being adapted f01 fracture When desired at p1*edetermined points.

eL A device 01"? the character described comprising a tube adapted to be fractured transversely at a predetermined point, a fixed partition consisting of tw0 pieces ce mented a1: said predetermined point of fracture and consisting of a disc und a conical piece forming an interior recess between the two, und 2L cannula needle centrally mounted in said fixed partition und traversing said recess und cemented in said partition,the

recess allowing an enlargement 0f cement adhering t0 said needle and holding the needle against movement in the partition.

In test-imony Whereof I have aflixed my signature.

JOHN H. VVEDIG. 

